The "cache update reply processing" functionality in Squid 2.x before 2.6.STABLE17 and Squid 3.0 allows remote attackers to cause a denial of service (crash) via unknown vectors related to HTTP headers and an Array memory leak during requests for cached objects.
https://www.redhat.com/archives/fedora-package-announce/2007-December/msg00507.html
https://www.redhat.com/archives/fedora-package-announce/2007-December/msg00497.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10915
https://bugzilla.redhat.com/show_bug.cgi?id=410181
http://www.vupen.com/english/advisories/2007/4066
http://www.ubuntu.com/usn/usn-565-1
http://www.squid-cache.org/Advisories/SQUID-2007_2.txt
http://www.securitytracker.com/id?1019036
http://www.securityfocus.com/bid/26687
http://www.redhat.com/support/errata/RHSA-2007-1130.html
http://www.mandriva.com/security/advisories?name=MDVSA-2008:002
http://www.kb.cert.org/vuls/id/232881
http://www.debian.org/security/2008/dsa-1482
http://security.gentoo.org/glsa/glsa-200903-38.xml
http://security.gentoo.org/glsa/glsa-200801-05.xml
http://secunia.com/advisories/34467
http://secunia.com/advisories/28814
http://secunia.com/advisories/28412
http://secunia.com/advisories/28403
http://secunia.com/advisories/28381
http://secunia.com/advisories/28350
http://secunia.com/advisories/28109
http://secunia.com/advisories/28091
http://secunia.com/advisories/27910
http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00002.html